So what do these small spats between the splitter and wheel well actually do? And is there any reason to do this on a Boss with a front splitter on it? I was looking at mine and there are two screws just inside the wheel well that could be used as attachment points and then secure it to the edge of the WC or LS splitter. In the photos I'm referring the flat piece facing forward and not the winglets on the sides. Thoughts?